On Sat, Feb 24, 2007 at 12:06:03AM +0000, Karanbir Singh wrote: > Ray Van Dolson wrote: > >Hi all, I hope this is not too off topic. I've searched the -devel > >archives, > >but haven't found clear-cut information on this, so thought I'd ask. > > > >I am trying to determine the kernel configuration used to build the kernel > >used on the installation media (CD #1 or the vmlinuz/initrd.img files in > >their > >respective images/boot.iso or images/diskboot.img files). > > > >My guess is the kernel configurations are not identical to the ones > >ultimately > >used to build the kernels used on the system once it is up and running.... > > > >I ask because I am interested in rebuilding the kernel used on CD #1 to > >boot > >into the installer. > > > > look in the distro tree : > http://mirror.centos.org/centos/4/os/i386/CentOS/RPMS ( eg, for the i386 ) > the kernel-2.6.9-*.<i686|i586>.rpm are the ones used for the installer, > each contain a .config file which will give you the config file used at > build time for that kernel rpm. K, so just the same kernel then that's used on the OS. That makes it fairly straightforward. > Why do you need to rebuild the installer kernel ? doing DriverDisks for > some piece of non-supported-by-default-hardware isnt hard. Well, the driver is an updated ata_piix and libsata driver for the ICH8 chipset. Neither Intel nor Dell appears to have a driver for download on their page. jbaron's beta release of the -48 kernel for RHEL4 includes driver support for it, but obviously the .ko's in his kernel are for the -48 kernel. I would either have to backport the driver to the kernel used on the U4/CentOS install CD's or update the kernel on those CD's to be -48 and work with the new drivers out of the box. I haven't taken a stab at backporting these drivers into the current stable kernels (and kernel used on the boot CD), maybe that would be easier...